On-vehicle power generation controller

Abstract

Provided is an on-vehicle power generation controller capable of uniformly maintaining balance of electric power generated by a plurality of generators, and also capable of realizing a less expensive controller structure. The on-vehicle power generation controller includes a controller ( 3 ) which adjusts a generated voltage to a predetermined voltage by controlling turning on and off of a field current so as to control an electric power generating operation of a generator. In a case where at least two on-vehicle power generation controllers are mounted with respect to a single engine, when respective generators ( 1 a, 1 b ) corresponding to the at least two on-vehicle power generation controllers are operated at the same time, each of second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators ( 1 a, 1 b ) based upon a field current on-off control signal output in a first on-vehicle power generation controller.

1. An on-vehicle power generation controller comprising:
 a controller for adjusting a generated voltage to a predetermined voltage by controlling turning on and off of a field current so as to control an electric power generating operation of a generator, 
 wherein: 
 at least two other on-vehicle power generation controllers, each having the same structure as the on-vehicle power generation controller, are mounted with respect to a single engine, 
 when respective generators corresponding to the at least two other on-vehicle power generation controllers are operated at the same time, each of second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators based upon a field current on-off control signal output in the on-vehicle power generation controller, and 
 each of the at least two other on-vehicle power generation controllers control their respective field currents to start and stop at substantially same time as the field current of the on-vehicle power generation controller. 
 
     
     
       2. The on-vehicle power generation controller according to  claim 1 ,
 wherein each of the at least two other on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators by employing the field current on-off control signal output in the on-vehicle power generation controller as an initiation signal. 
 
     
     
       3. An on-vehicle power generation controller comprising:
 a controller for adjusting a generated voltage to a predetermined voltage by controlling turning on and off of a field current so as to control an electric power generating operation of a generator, 
 wherein: 
 at least two other on-vehicle power generation controllers, each having the same structure, are mounted with respect to a single engine, 
 when respective generators corresponding to the at least two other on-vehicle power generation controllers are operated at the same time, each of second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators based upon a field current on-off control signal output in a first on-vehicle power generation controller, 
 wherein a third on-vehicle power generation controller controls the electric power generating operation of a corresponding generator by employing the field current on-off control signal generated at the second on-vehicle power generation controller provided at a preceding stage thereof. 
 
     
     
       4. A power generation system comprising:
 a first on-vehicle power generation controller, a second on-vehicle power generation controller, and a third on-vehicle power generation controller, each of the first, second, and third on-vehicle power generation controllers having a same structure, 
 the first on-vehicle power generation controller comprising a first controller and a first generator, 
 the first controller configured for adjusting a generated voltage to a predetermined voltage by controlling turning on and off of a field current based on a field current on-off control signal to control an electric power generating operation of the first generator, 
 
       wherein:
 the second on-vehicle power generation controller, the third on-vehicle power generation controller, and the first on-vehicle power generation controller are configured to electrically couple to a single engine, 
 the second on-vehicle power generation controller is configured to control electric power generating operation of a second generator based on the field current on-off control signal output by the first on-vehicle power generation controller, 
 the third on-vehicle power generation controller is configured to control electric power generating operation of a third generator based on the field current on-off control signal output by the first on-vehicle power generation controller, and 
 a start and end time of a conduction cycle of a first switching element, which controls the field current of the first generator, is substantially the same as a start and end time of a conduction cycle of a second switching element, which controls the field current of the second generator. 
 
     
     
       5. A power generation system comprising:
 a first on-vehicle power generation controller and a second on-vehicle power generation controller, 
 the first on-vehicle power generation controller comprising a first controller and a first generator, 
 the first controller configured for adjusting a generated voltage to a predetermined voltage by controlling turning on and off of a field current based on a field current on-off control signal to control an electric power generating operation of the first generator, 
 
       wherein:
 the second on-vehicle power generation controller and the first on-vehicle power generation controller are configured to electrically couple to a single engine, 
 the second on-vehicle power generation controller is configured to control electric power generating operation of a second generator based on the field current on-off control signal output by the first on-vehicle power generation controller, 
 a third on-vehicle power generation controller controls the electric power generating operation of a corresponding third generator by employing a field current on-off control signal generated at the second on-vehicle power generation controller provided at a preceding stage thereof, and 
 the field current on-off control signal is generated at the second on-vehicle power generation controller in response to the field current on-off control signal output in the first controller.